Compact refractor telescope for wide-field observation and astrophotography, incl. a precise GoTo mount with intuitive Wi-Fi control via app
- High-quality achromatic refractor telescope with precise GoTo mount
- Aperture: 127 mm / Focal length: 635 mm / F5
- Excellent HEXAFOC focuser with 65 mm diameter
- Handle with integrated camera holder
- Secure solar filter included
- Unique PMC-8 OpenGoto system
- User-friendly ExploreStars OpenGoto app
- Wi-Fi control via tablet, notebook, or desktop PC
- Intuitive 2-star and 3-star alignment for GoTo initialization
- ASCOM driver available, enabling custom firmware and object lists
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Read nowFAQ - Frequently Asked Questions
- Alt-azimuth: easy to use, moves horizontally and vertically
- Equatorial: enables precise tracking of objects with only one axis – ideal for high magnifications and astrophotography
- Moon: from 30 mm
- Planets: from 100 mm
- Deep sky: from 150 mm
Product information "BRESSER Messier AR127s/635 EXOS-2 PMC-Eight GoTo Telescope Set"
The Telescope
As a quality telescope for night and solar observations, the BRESSER Messier AR-127S/635 tube with its compact design offers particularly large and bright fields of view. Be sure to use it to observe the Andromeda Galaxy! The light from this object, visible over 2 million light-years away, is as spectacular through this telescope as observing large gas nebulae. Thanks to the large aperture, the Messier AR-127S/635 can use nebula filters that enhance gas nebulae with remarkable contrast. The special construction as a four-lens achromat achieves minimal color error and better photographic correction than comparable two-lens devices, even with a very fast focal ratio of f/5 for a refractor. With the high-quality solar filter, you can safely observe sunspots, eclipses, and planetary transits. (Warning: Never point the telescope at the sun without a solar filter.)
The Mount
The EXPLORE SCIENTIFIC EXOS-2 PMC-Eight GoTo mount is equipped with a modern, highly accurate GoTo control system. It consists of a robust Wi-Fi controller unit providing all necessary interfaces. The NEMA-11 stepper motors are connected directly to this unit by cable, and an ST-4 compatible autoguider interface is also available. Additionally, the control supports micro-step mode for precise tracking.
Intuitive operation via app and graphic star map
The ExploreStars app, developed specifically for the PMC-Eight system, offers an intuitive, visually pleasing user interface. The app displays available alignment stars for system initialization and all celestial objects in the database as a star map with additional text information. All objects can be easily viewed and selected.
Powerful controller unit with Open GoTo for customization
The heart of the controller unit is a fully autonomous, 2-channel multi-processor with 8 CPUs and a Wi-Fi Ethernet 10/100 adapter with IP functionality. This setup enables remote operation via browser, ASCOM, app, or serial connection. Open GoTo allows custom firmware to be written and loaded onto the controller, enabling individual customization of device functions and the creation of custom object lists.
Polar finder included
The included pre-mounted polar finder scope enables quick and precise alignment and long exposure times without unwanted star trails. The integrated LED lighting unit further enhances the usability of the polar finder.
TELESCOPE FEATURES
- Type: Refractor telescope
- Lens diameter: 127 mm / Focal length: 635 mm / F/5
- Maximum useful magnification: 254x
- Telescope for night and solar observations
- High-quality BRESSER refractor optics
- Four-lens design for enhanced imaging performance
- Ideal universal telescope for planets, double stars, planetary nebulae, and deep-sky
- Very high-quality Hexafoc focuser with a 2.5" internal diameter
- 6x30 finder with crosshair eyepiece; optimized holder for comfortable viewing
- 31.7 mm (1.25") star diagonal mirror
- Handle for easy transport with integrated camera holder (photo thread)
- Smartphone camera adapter for sky navigation included
- Prism rail with stainless steel clamping surface (44-mm universal dovetail for GP/EQ5/LXD75)
- 50.8 to 31.7 mm adapter with integrated T2 thread (optional T2 ring required)
MOUNT FEATURES
- Powerful PMC-8 Open GoTo system
- User-friendly and visually appealing ExploreStars OpenGoto app
- Wi-Fi control via tablet, notebook, or desktop PC with a minimum 7" display and Wi-Fi function (not included)
- Compatible operating systems: WIN8.1, WIN10/11, iOS, or Android 4.4 and higher
- Classic control via directional buttons or joystick for guiding, centering, correcting, and moving via touchscreen
- Intuitive 2-star and 3-star alignment for GoTo initialization
- Multiprocessor microcontroller with 8 CPUs (cores)
- Micro-stepper motors NEMA-11
- Highly precise and quiet toothed belt drive
- ST-4 compatible autoguider interface
- ASCOM driver available, also supports pulse guiding
- Ability to create and load custom firmware and object lists into the PMC-8
- GPS compatible / settings depend on the computer or tablet used
- Powered by 12V DC; max current draw at full load: 1.6 amps
SCOPE OF DELIVERY
- Optical tube with Hexafoc focuser
- Solar filter
- Eyepieces: 26 mm Super Plössl, 31.7 mm (1.25")
- 2" eyepiece adapter
- 8x50 finder scope
- Star diagonal mirror
- Tube rings with carrying handle and camera holder
- Smartphone adapter for navigation
- Prism rail with stainless steel clamping surface (44 mm universal dovetail for GP/EQ5/LXD75)
- Astronomy PC software Stellarium (downloadable)
- Rotatable star map
- EXOS2-GT mount with Open GoTo PMC-8
- Stainless steel tripod with built-in bubble level
- Counterweight 2 x 4.5 kg
- Polar finder with illumination unit
- 12V / 2A power adapter
- ExploreStars app (downloadable)
- User manual
| Angular resolution (arc seconds): | 1 |
|---|---|
| Batteries included: | Yes |
| Batteries required: | Yes |
| Colour: | black |
| Compass: | No |
| Dust protection caps: | for front lens and eyepiece |
| ED glass: | No |
| Field of application [Telescopes]: | Deep Sky Observation , Deep Sky Photography , Lunar observation , Lunar photography , Planetary observation , Planetary photography , Solar observation |
| Fine movements: | deep-sky observation , deep-sky photography , moon observation , moon photography , planet observation , planet photography , solar observation |
| Focal length (mm): | 635 |
| Focusing system: | 2.5" Hexafoc |
| Magnification from: | 24 |
| Material: | Aluminium , Plastic , Stainless steel |
| Material tripod 3): | Stainless Steel |
| Maximum load capacity (kg): | 13 |
| Maximum recommended magnification: | 254 |
| Mirror/Lens diam. (mm): | 127 |
| Mount Type [Telescopes]: | German/Equatorial Mount with GoTo |
| Net weight OTA (incl. accessories) (kg): | 7.7 |
| Optical design: | Achromatic Refractor |
| Polefinder scope: | as standard; illuminated , included |
| Power supply 1): | 12V Batteries or mains adapter |
| Power supply unit included: | Yes |
| Product Family [Telescopes]: | Refractor telescope |
| Product series: | Messier |
| Reticle: | No |
| Target Group [Telescopes]: | Advanced Amateurs , Beginners , Specialists and Research , Visual enthusiasts |
| Tripod height adjustment: | No |
| Tube diameter (mm): | 133 |
| Tube length (mm): | 965 |
| Typ [Batteries]: | LR41 |
| Type of coating: | Multi coated |
Product and safety instructions
Manufacturer:
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede
www.bresser.de